Avtor/Urednik | Mulec, Janez; Starčič, Marjanca; Žgur-Bertok, Darja | |
Naslov | F-like plasmid sequences in enteric bacteria of diverse origin, with implication of horizontal transfer and plasmid host range | |
Tip | članek | |
Vir | Curr Microbiol | |
Vol. in št. | Letnik 44 | |
Leto izdaje | 2002 | |
Obseg | str. 231-5 | |
Jezik | eng | |
Abstrakt | Seventy-eight bacterial isolates from human, animal, and plant hosts, representing eight species of the family Enterobacteriaceae, were screened for F-like plasmid sequences. Of the'examined human Escherichia coli strains, 28% harbored one or two of the three F-like, RepFI replication regions, while 35% of the examined animal and all phytopathogenic strains harbored RepFIA-specific sequences. Comparative analysis of Salmonella, Shigella, Erwinia, and E. coli plasmid RepFI sequences showed 100% or very high homology, indicating frequent and recent interspecies gene transfer. The high incidence of RepFIA sequences in enteric bacterial species, including Klebsiella and Erwinia, showed that F-like plasmids are successful in avoiding natural barriers to establishment of horizontally transferred DNA and that in the natural environment conjugal transfer is efficient in diverse ecological niches. | |
Deskriptorji | ENTEROBACTERIACEAE PLASMIDS F FACTOR ESCHERICHIA COLI GENE TRANSFER POLYMERASE CHAIN REACTION REPLICON SHIGELLA SALMONELLA KLEBSIELLA ERWINIA SEROTYPING |